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A222924
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T(n,k)=Number of nXk 0..4 arrays with no three equal values in a row horizontally or vertically, and new values 0..4 introduced in row major order
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6
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1, 2, 2, 4, 15, 4, 12, 174, 174, 12, 41, 3183, 13571, 3183, 41, 158, 68076, 1396408, 1396408, 68076, 158, 663, 1543538, 149478882, 700411548, 149478882, 1543538, 663, 2944, 35663142, 16132176644, 352790675074, 352790675074, 16132176644
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OFFSET
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1,2
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COMMENTS
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Table starts
.....1...........2...............4................12..................41
.....2..........15.............174..............3183...............68076
.....4.........174...........13571...........1396408...........149478882
....12........3183.........1396408.........700411548........352790675074
....41.......68076.......149478882......352790675074.....829048065675262
...158.....1543538.....16132176644...177991922235005.1950399182366908036
...663....35663142...1743046774975.89795579488204082
..2944...829049736.188375987615301
.13537.19310392822
.63551
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LINKS
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EXAMPLE
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Some solutions for n=3 k=4
..0..0..1..0....0..0..1..0....0..0..1..0....0..0..1..0....0..0..1..0
..1..2..0..1....2..0..3..2....2..1..3..0....2..1..2..2....2..2..0..1
..2..2..3..3....1..3..4..0....3..1..3..3....0..2..2..3....0..3..4..2
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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